Digital Battery Meter
Measures battery voltage when "+" and "-" probes are touched to battery's corresponding "+" and "-" terminals.
Voltage of a fully charged 12V battery is no lower than 12.6V. A 40% charge will read 12.2V.
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Battery Charge Chart
|Volts||% of Charge|
Absolutely recharge the battery if the reading falls below 12.2V.
Batteries MUST remain fully charged in freezing conditions.